194 11 Stages of Cognitive Development Piaget Meets Uncertain Inference Full self modification Capable of self-modification of internal structures Able to carry out arbitary complex inferences (constrained Formal only by computational resources) via including inference control as an explicit subject of abstract learning Able to carry out more complex chains of reasoning via using Concrete inference control schemata that adapt behavior based on experience (reasoning about a given case in a manner similar to prior cases) Able to recognise patterns in and make inferences about the Infantile world, but only using simplistic hard-wired (not experientially learned) inference control schema. Fig. 11.2: Piagetan Stages of Development, as Manifested in the Context of Uncertain Inference An uncertain inference system, as we consider it here, consists of four components, which work together in a feedback-control loop 11.3 1. a content representation scheme 2. an uncertainty representation scheme 3. a set of inference rules 4, a set of inference control schemata EO — , >, | Inference | Inference | Inference | d Rule 1 Rule 2 _ Rule N f Prior { P - Experience \ Weighted Best } > Selects Best a Chaice Control Inference Rules(s) 2 Schema _ AS | Inference Control | —_— 7 ba ‘ ff mS % Schemata 1 & wen ra / . - | ~) | a f | Taken Inference Control | = fw \ | Schemata 2 a ¥ | Inference Control i“, - Schemata N Fig. 11.3: A Simplified Look at Feedback-Control in Uncertain Inference